---
title: "Cron Expression Parser: Decode any cron expression into…"
canonical: "https://openvibe.tools/tool/cron"
updated: null
---

# Cron Expression Parser: Decode any cron expression into…

HTML: [Cron Expression Parser: Decode any cron expression into…](https://openvibe.tools/tool/cron)

# Cron Expression Parser

Paste a cron expression to read it in plain English and see exactly when it will fire next. Saves guessing whether a schedule means every five minutes or five past the hour.

- **Limits** No daily limit on the page
- **Where it runs** Runs in your browser; nothing is uploaded.
- **Cost** Free, with the limits above. No account needed.

 [Open Cron Expression Parser](https://cron.openvibe.tools/) 

## Where to find it

Every address below opens the same tool. The first address is the one to bookmark and share.

- [cron.openvibe.tools](https://cron.openvibe.tools/)Primary

## People also call this

**What it's for:** Decode any cron expression into plain English and see the next run times. Validate crontab syntax before you deploy it. Instant.

**What trips people up:** **Why did my cron job not run?** Most often the field order is wrong (minute, hour, day of month, month, day of week) or the day-of-week and day-of-month fields conflict. The parser shows the interpreted schedule so you can spot it.

- cron expression parser
- crontab generator
- cron schedule explained
- next run time
- cron validator

## Use it from code

- `POST https://openvibe.tools/api/v1/tools/cron/run`
- No account needed: anonymous calls run on the lowest quota tier; a token with `tools.tool.run` raises it.
- It answers with the result.

~~~~
curl -X POST https://openvibe.tools/api/v1/tools/cron/run \
  -H 'Content-Type: application/json' \
  -d '{"input":{"expression":"*/15 9-17 * * 1-5"}}'
~~~~

Inputs: [JSON Schema](/api/v1/tools/cron/schema) · [OpenAPI](/api/v1/openapi.json) · from JavaScript: `tools.run("cron", …)` in [openvibe-sdk](https://github.com/OpenVibers/OpenVibe.SDK) · [How the API works](/developers)

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